Sight Capable of Measuring Distance

ABSTRACT

A sight includes a first housing having a line of sight and accommodating an optical and laser receiving module, visible light reflected from a target to enter into the optical and laser receiving module so as to observe the target; a second housing combined with an outer surface of the first housing and accommodating a laser transmitting module emitting a laser beam which is reflected by the target and received by the optical and laser receiving module, whereby a distance of the target is calculated by the sight; an elevation-and-windage-adjustment module mounted on the outer surface of the first housing and disposed under the first housing to adjust the first housing to move so that a sight direction of the line of sight moves; and a power supply, the power supply provides power for the optical and laser receiving module and the laser transmitting module.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a sight, and more particularly to a sight capable of measuring distances.

2. Description of the Related Art

When using a gun to fire, people usually use a sight to help aim a target more exactly. When aiming a target by using a sight, people usually adjust elevation and windage to correct a bullet impact point according to a distance of the target and conditions of climate. The distance of the target estimated by the judgment of people's eyes that is used in the general sight, but this way will produce some errors.

If people want to know the distance of the target, he will combine the sight with the rangefinder. However, this way will cause the size and the length of the sight to become bigger and longer. As a result, it is very inconvenient to use the sight.

BRIEF SUMMARY OF THE INVENTION

To address the shortcomings discussed, the invention provides a sight capable of measuring distances, and this kind of sight can have a smaller size and shorter length. The sight in accordance with an exemplary embodiment of the invention includes a first housing , the first housing has a line of sight and occupies an optical and laser receiving module, a second housing, the second housing combined with an outer surface of the first housing and occupies a laser transmitting module, an elevation-and-windage-adjustment module and a power supply. A visible light reflected from a target to enter into the optical and laser receiving module so as to observe the target, and the laser transmitting module emits a laser beam which is reflected by the target and is received by the optical and laser receiving module, and whereby a distance of the target is calculated by the sight. The elevation-and-windage-adjustment module mounted on the outer surface of the first housing and disposed under the first housing to adjust the first housing to move so that a sight direction of the line of sight moves, and the power supply provides power for the optical and laser receiving module, and the laser transmitting module. In another exemplary embodiment, the optical and laser receiving module comprises an objective lens set, an erecting lens set, a display and an eyepiece set, and a display mounted at a second focal plane of the optical and laser receiving module, and the visible light reflected from the target to pass through the objective lens set and the erecting lens set in order and to image the visible light at the display, and the display shows an image of the target, and the image observed through the eyepiece set.

In yet another exemplary embodiment, the optical and laser receiving module further comprises a prism and a laser receiving element, the laser beam reflected from the target to enter into the optical and laser receiving module, and the laser beam passes through the objective lens set, and the laser beam refracted from the prism and received by the laser receiving element.

In another exemplary embodiment, the laser transmitting module further comprises a laser source and a laser light-concentrating lens set, and the laser source emits the laser beam which is concentrated by the laser light-concentrating lens set, and then the laser beam hits the target.

In yet another exemplary embodiment, the elevation-and-windage-adjustment module comprises a mounting element, a windage adjustment element and an elevation adjustment element, and the sight mounted on a weapon body through the mounting element, and the windage adjustment element adjusts the first housing to move horizontally that corresponds to an horizontal trajectory, and the elevation adjustment element adjusts the first housing to move vertically that corresponds to a vertical trajectory.

In another exemplary embodiment, a base of the first housing has an association seat, the association seat restricts the first housing to move a distance of horizon that corresponds to the horizontal trajectory.

In yet another exemplary embodiment, the mounting element comprises an holder, at least a first adjusting screw, a lateral plate, a mounting knob, and a bayonet, the sight mounted on the weapon body by using the first adjusting screw to pass through the holder, the lateral plate, and the mounting knob, and also by collocating the bayonet to pass through the mounting knob.

In another exemplary embodiment, the windage adjustment element comprises at least a second adjusting screw, and the second adjusting screw mounted rotatablely on the holder.

In yet another exemplary embodiment, the windage adjustment element further comprises a limit column mounted on one side of the holder, and the second adjusting screw sets the association seat to combine with the limit column.

In another exemplary embodiment, the elevation adjustment element comprises a fixing bolt mounted on the other side of the holder, an adjusting wheel combines with the fixing bolt, and the adjusting wheel mounted rotatablely on the holder.

In yet another exemplary embodiment, the elevation adjustment element comprises a spacing ring, and the adjusting wheel and the spacing ring connected to the holder.

In another exemplary embodiment, the second adjusting screw sets the association seat to combine with one side of the holder.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:

FIG. 1 is a three dimensional view of an embodiment of a sight capable of measuring distances of the invention.

FIG. 2 is another three dimensional view of an embodiment of a sight capable of measuring distances of the invention.

FIG. 3 is a perspective view of an embodiment of an optical and laser receiving module of a sight capable of measuring distances.

FIG. 4 is a perspective view of an embodiment of a laser transmitting module of a sight capable of measuring distances.

FIG. 5A is an explosion view of an elevation-and-windage-adjustment module of a sight capable of measuring distances.

FIG. 5B is an explosion view of a mounting element of an elevation-and-windage-adjustment module of a sight capable of measuring distances.

FIG. 5C is an explosion view of a windage adjustment element of an elevation-and-windage-adjustment module of a sight capable of measuring distances.

FIG. 5D is an explosion view of an elevation adjustment element of an elevation-and-windage-adjustment module of a sight capable of measuring distances.

FIG. 5E is an explosion view of a bottom of an elevation-and-windage-adjustment module of a sight capable of measuring distances.

DETAILED DESCRIPTION OF THE INVENTION

The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.

Referring to FIGS. 1 and 2, a sight 100 capable of measuring distances, and the sight 100 includes an optical and laser receiving module 10, a laser transmitting module 20, an elevation-and-windage-adjustment module 30.

The optical and laser receiving module 10 has a line of sight and installed in the first cylinder housing 5. The laser transmitting module 20 installed in the second housing 6, and the second housing 6 combined with an outer surface of the first housing 5. A third housing 7 installed behind the laser transmitting module 20, and a power supply 40 (FIG. 4) installed in the third housing 7. The power supply 40 connected electrically to the optical and laser receiving module 10 and the laser transmitting module 20 so as to supply power to the optical and laser receiving module 10 and the laser transmitting module 20, and the power supply 40 can be a battery. The elevation-and-windage-adjustment module 30 is below the first housing 5 so as to connect the optical and laser receiving module 10 and the laser transmitting module 20 to a weapon body, for example a weapon body is a barrel.

By said description that we know the first housing 5 only occupies the optical and laser receiving module 10, but the laser transmitting module 20 and the elevation-and-windage-adjustment module 30 do not be installed inside the first housing 5, that is outside the first housing 5. As a result, this kind of installation can avoid that the length of the sight 100 is too long. Specially speaking, the laser transmitting module 20 and the power supply 40 mounted on the same side of the optical and laser receiving module 10 and the elevation-and-windage-adjustment module 30 mounted on the outer surface of the first housing 5 and disposed under the first housing 5 to adjust the first housing 5 to move so that a sight direction of the line of sight moves. A base of the first housing 5 has an association seat 51, the association seat 51 restricts the first housing 5 to move a distance of horizon that corresponds to the horizontal trajectory. By this kind of design that it can shorten the length of the sight 100 effectively, that is, the length of the sight 100 even can be under 200 mm.

The optical and laser receiving module 10 has the function of telescope and receiving laser simultaneously and this two kind of functions can be integrated into the same module, then the module installed in the first housing 5. Referring to FIGS. 3 and 4, the optical and laser receiving module 10 includes an objective lens set 12, an erecting lens set 14, a prism 15, a laser receiving element 17, a display 18 and an eyepiece set 19. When aiming an object by the sight 100, the visible light of the object enters into the sight 100 and passes through the objective lens set 12, the prism 15 and the erecting lens set 14 in order, and then images the visible light on the display 18 (The display 18 is on the second focal plane) (The first focal plane is marked with 16). A user can observe the image on the display 18 through the eyepiece set 19.

The laser transmitting module 20 includes a laser source 22 and a laser condensing lens set 24. The target can be hit by a laser beam which can be emitted by the laser source 22 and condensed by the laser condensing lens set 24. The laser beam reflected from the target enters into optical and laser receiving module 10, and the laser beam passes through the objective lens set 12 and can be refracted by the prism 15 and finally can be received by the laser receiving element 17. As a result, the distance of the target can be got by calculating and the numerical value of the distance of the target can be displayed on the display 718. The laser source 22 can be a. laser diode (LD). The laser receiving element 17 can be an avalanche photodetector (APD).

FIG. 5A depicts the elevation-and-windage-adjustment module 30 of the sight 100. The elevation-and-windage-adjustment module 30 includes a windage adjustment element 34, a mounting element 35, and an elevation adjustment element 36. This three kind of elements are described as below.

FIG. 5B depicts the mounting element 35 includes a holder 174, two first adjusting screws 168 {grave over ( )} 169, a lateral plate 189, a mounting knob 167, and a bayonet 165. By using the two first adjusting screws 168 {grave over ( )} 169 to pass through the holder 174, the lateral plate 189, and the mounting knob 167, and also collocate the bayonet 165 to pass through the mounting knob 167. As a result, the sight 100 of the invention mounted on the weapon body (for example a barrel).

FIG. 5C depicts the windage adjustment element 34 includes two second adjusting screws 170 {grave over ( )} 173 and a limit column 177. An association seat 51 mounted on the base of the first housing 5 ,and the association seat 51 can be used to connect the two second adjusting screws 170 {grave over ( )} 173, the holder 174, and the limit column 177, that is, the limit column 177 mounted on one side of the holder 174, and the two second adjusting screws 170 {grave over ( )} 173 sets the association seat 51 to combine with the limit column 177 By rotating the two second adjusting screws 170 {grave over ( )} 173 to cause the holder 174 to move back and forth along an horizontal direction(X-axis direction) so that a bullet impact point can be corrected in connection with wind speed and wind direction. However, the limit column 177 is not necessary, the two second adjusting screws 170 {grave over ( )} 173 sets the association seat 51 to combine with one side of the holder 174 directly. This kind of design also can accomplish the holder 174 to move back and forth along a horizontal direction (X-axis direction).

FIG. 5D depicts the elevation adjustment element 36 includes a fixing bolt 178, an adjusting wheel 179, and a spacing ring 180. The fixing bolt 178 associated with the other side of the holder 174, wherein the fixing bolt 178 and the adjusting wheel 179 matches by threads so as to fix a fastening base of the adjusting screw 184 and a screw 91 on the first housing 5. By rotating the adjusting wheel 179 and collocating the spacing ring 180 to cause the holder 174 to move down and up along a vertical direction (Y-axis direction) so that a bullet impact point can be adjusted.

FIG. 5E depicts more clearly that the association seat 51 is on the base of the first housing 5, and the distance of the movement of the first housing 5 along X-axis direction can be restricted by the association seats 1.

By mounting the optical and laser receiving module 10 and the laser transmitting module 20 on the sight 100 of the invention, the sight 100 can measure the distance of the target so that a bullet impact point can be corrected accurately when firing. As a result, the target can be hit exactly. 

What is claimed is:
 1. A sight capable of measuring distances, the sight comprising: a first housing comprising a line of sight and accommodating an optical and laser receiving module, a visible light reflected from a target to enter into the optical and laser receiving module so as to observe the target; a second housing combined with an outer surface of the first housing and accommodating a laser transmitting module emitting a laser beam which is reflected by the target and is received by the optical and laser receiving module, whereby a distance of the target is calculated by the sight; an elevation-and-windage-adjustment module mounted on the outer surface of the first housing and disposed under the first housing to adjust the first housing to move so that a sight direction of the line of sight moves ; and a power supply providing power for the optical and laser receiving module and the laser transmitting module.
 2. The sight capable of measuring distances as claimed in claim 1, wherein the optical and laser receiving module comprises an objective lens set, an erecting lens set, a display and an eyepiece set, and a display mounted at a second focal plane of the optical and laser receiving module, and the visible light reflected from the target to pass through the objective lens set and the erecting lens set in order and to image the visible light at the display, and the display shows an image of the target, and the image observed through the eyepiece set.
 3. The sight capable of measuring distances as claimed in claim 2, wherein the optical and laser receiving module further comprises a prism and a laser receiving element, the laser beam reflected from the target to enter into the optical and laser receiving module, and the laser beam passes through the objective lens set, and the laser beam refracted from the prism and received by the laser receiving element.
 4. The sight capable of measuring distances as claimed in claim 1, wherein the laser transmitting module further comprises a laser source and a laser light-concentrating lens set, and the laser source emits the laser beam which is concentrated by the laser light-concentrating lens set, and then the laser beam hits the target.
 5. The sight capable of measuring distances as claimed in claim 1, wherein the elevation-and-windage-adjustment module comprises a mounting element, a windage adjustment element and an elevation adjustment element, and the sight mounted on a weapon body through the mounting element, and the windage adjustment element adjusts the first housing to move horizontally that corresponds to an horizontal trajectory, and the elevation adjustment element adjusts the first housing to move vertically that corresponds to a vertical trajectory.
 6. The sight capable of measuring distances as claimed in claim 5, wherein a base of the first housing has an association seat, the association seat restricts the first housing to move a distance of horizon that corresponds to the horizontal trajectory.
 7. The sight capable of measuring distances as claimed in claim 6, wherein the mounting element comprises an holder, at least one first adjusting screw, a lateral plate, a mounting knob, and a bayonet, the sight mounted on the weapon body by using the first adjusting screw to pass through the holder, the lateral plate, and the mounting knob, and also by collocating the bayonet to pass through the mounting knob.
 8. The sight capable of measuring distances as claimed in claim 7, wherein the windage adjustment element comprises at least a second adjusting screw, and the second adjusting screw mounted rotatably on the holder.
 9. The sight capable of measuring distances as claimed in claim 8, wherein the windage adjustment element further comprises a limit column mounted on one side of the holder, and the second adjusting screw sets the association seat to combine with the limit column.
 10. The sight capable of measuring distances as claimed in claim 9, wherein the elevation adjustment element comprises a fixing bolt mounted on the other side of the holder, an adjusting wheel combines with the fixing bolt, and the adjusting wheel mounted rotatablely on the holder.
 11. The sight capable of measuring distances as claimed in claim 10, wherein the elevation adjustment element comprises a spacing ring, and the adjusting wheel and the spacing ring connected to the holder.
 12. The sight capable of measuring distances as claimed in claim 8, wherein the second adjusting screw sets the association seat to combine with one side of the holder. 